/**
 * jscolor, JavaScript Color Picker
 *
 * @version 1.4.1
 * @license GNU Lesser General Public License, http://www.gnu.org/copyleft/lesser.html
 * @author  Jan Odvarko, http://odvarko.cz
 * @created 2008-06-15
 * @updated 2013-04-08
 * @link    http://jscolor.com
 */
define(function (require, exports, moudles) {
    var jQuery = require("jquery");
	var jscolor = {


		dir : '/assets/images/plugins/jscolor/', // location of jscolor directory (leave empty to autodetect)
		bindClass : 'color', // class name
		binding : true, // automatic binding via <input class="...">
		preloading : true, // use image preloading?


		install : function() {
			jscolor.addEvent(window, 'load', jscolor.init);
		},
		installd : function() {
			jscolor.init();
		},

		init : function() {
			if(jscolor.binding) {
				jscolor.bind();
			}
			if(jscolor.preloading) {
				jscolor.preload();
			}
		},


		getDir : function() {
			if(!jscolor.dir) {
				var detected = jscolor.detectDir();
				jscolor.dir = detected!==false ? detected : 'jscolor/';
			}
			return jscolor.dir;
		},


		detectDir : function() {
			var base = location.href;

			var e = document.getElementsByTagName('base');
			for(var i=0; i<e.length; i+=1) {
				if(e[i].href) { base = e[i].href; }
			}

			var e = document.getElementsByTagName('script');
			for(var i=0; i<e.length; i+=1) {
				if(e[i].src && /(^|\/)jscolor\.js([?#].*)?$/i.test(e[i].src)) {
					var src = new jscolor.URI(e[i].src);
					var srcAbs = src.toAbsolute(base);
					srcAbs.path = srcAbs.path.replace(/[^\/]+$/, ''); // remove filename
					srcAbs.query = null;
					srcAbs.fragment = null;
					return srcAbs.toString();
				}
			}
			return false;
		},


		bind : function() {
			var matchClass = new RegExp('(^|\\s)('+jscolor.bindClass+')\\s*(\\{[^}]*\\})?', 'i');
			var e = document.getElementsByTagName('input');
			for(var i=0; i<e.length; i+=1) {
				var m;
				if(!e[i].color && e[i].className && (m = e[i].className.match(matchClass))) {
					var prop = {};
					if(m[3]) {
						try {
							prop = (new Function ('return (' + m[3] + ')'))();
						} catch(eInvalidProp) {}
					}
					e[i].color = new jscolor.color(e[i], prop);
				}
			}
		},


		preload : function() {
			for(var fn in jscolor.imgRequire) {
				if(jscolor.imgRequire.hasOwnProperty(fn)) {
					jscolor.loadImage(fn);
				}
			}
		},


		images : {
			pad : [ 181, 101 ],
			sld : [ 16, 101 ],
			cross : [ 15, 15 ],
			arrow : [ 7, 11 ]
		},


		imgRequire : {},
		imgLoaded : {},


		requireImage : function(filename) {
			jscolor.imgRequire[filename] = true;
		},


		loadImage : function(filename) {
			if(!jscolor.imgLoaded[filename]) {
				jscolor.imgLoaded[filename] = new Image();
				jscolor.imgLoaded[filename].src = jscolor.getDir()+filename;
			}
		},


		fetchElement : function(mixed) {
			return typeof mixed === 'string' ? document.getElementById(mixed) : mixed;
		},


		addEvent : function(el, evnt, func) {
			if(el.addEventListener) {
				el.addEventListener(evnt, func, false);
			} else if(el.attachEvent) {
				el.attachEvent('on'+evnt, func);
			}
		},


		fireEvent : function(el, evnt) {
			if(!el) {
				return;
			}
			if(document.createEvent) {
				var ev = document.createEvent('HTMLEvents');
				ev.initEvent(evnt, true, true);
				el.dispatchEvent(ev);
			} else if(document.createEventObject) {
				var ev = document.createEventObject();
				el.fireEvent('on'+evnt, ev);
			} else if(el['on'+evnt]) { // alternatively use the traditional event model (IE5)
				el['on'+evnt]();
			}
		},


		getElementPos : function(e) {
			var e1=e, e2=e;
			var x=0, y=0;
			if(e1.offsetParent) {
				do {
					x += e1.offsetLeft;
					y += e1.offsetTop;
				} while(e1 = e1.offsetParent);
			}
			while((e2 = e2.parentNode) && e2.nodeName.toUpperCase() !== 'BODY') {
				x -= e2.scrollLeft;
				y -= e2.scrollTop;
			}
			return [x, y];
		},


		getElementSize : function(e) {
			return [e.offsetWidth, e.offsetHeight];
		},


		getRelMousePos : function(e) {
			var x = 0, y = 0;
			if (!e) { e = window.event; }
			if (typeof e.offsetX === 'number') {
				x = e.offsetX;
				y = e.offsetY;
			} else if (typeof e.layerX === 'number') {
				x = e.layerX;
				y = e.layerY;
			}
			return { x: x, y: y };
		},


		getViewPos : function() {
			if(typeof window.pageYOffset === 'number') {
				return [window.pageXOffset, window.pageYOffset];
			} else if(document.body && (document.body.scrollLeft || document.body.scrollTop)) {
				return [document.body.scrollLeft, document.body.scrollTop];
			} else if(document.documentElement && (document.documentElement.scrollLeft || document.documentElement.scrollTop)) {
				return [document.documentElement.scrollLeft, document.documentElement.scrollTop];
			} else {
				return [0, 0];
			}
		},


		getViewSize : function() {
			if(typeof window.innerWidth === 'number') {
				return [window.innerWidth, window.innerHeight];
			} else if(document.body && (document.body.clientWidth || document.body.clientHeight)) {
				return [document.body.clientWidth, document.body.clientHeight];
			} else if(document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
				return [document.documentElement.clientWidth, document.documentElement.clientHeight];
			} else {
				return [0, 0];
			}
		},


		URI : function(uri) { // See RFC3986

			this.scheme = null;
			this.authority = null;
			this.path = '';
			this.query = null;
			this.fragment = null;

			this.parse = function(uri) {
				var m = uri.match(/^(([A-Za-z][0-9A-Za-z+.-]*)(:))?((\/\/)([^\/?#]*))?([^?#]*)((\?)([^#]*))?((#)(.*))?/);
				this.scheme = m[3] ? m[2] : null;
				this.authority = m[5] ? m[6] : null;
				this.path = m[7];
				this.query = m[9] ? m[10] : null;
				this.fragment = m[12] ? m[13] : null;
				return this;
			};

			this.toString = function() {
				var result = '';
				if(this.scheme !== null) { result = result + this.scheme + ':'; }
				if(this.authority !== null) { result = result + '//' + this.authority; }
				if(this.path !== null) { result = result + this.path; }
				if(this.query !== null) { result = result + '?' + this.query; }
				if(this.fragment !== null) { result = result + '#' + this.fragment; }
				return result;
			};

			this.toAbsolute = function(base) {
				var base = new jscolor.URI(base);
				var r = this;
				var t = new jscolor.URI;

				if(base.scheme === null) { return false; }

				if(r.scheme !== null && r.scheme.toLowerCase() === base.scheme.toLowerCase()) {
					r.scheme = null;
				}

				if(r.scheme !== null) {
					t.scheme = r.scheme;
					t.authority = r.authority;
					t.path = removeDotSegments(r.path);
					t.query = r.query;
				} else {
					if(r.authority !== null) {
						t.authority = r.authority;
						t.path = removeDotSegments(r.path);
						t.query = r.query;
					} else {
						if(r.path === '') {
							t.path = base.path;
							if(r.query !== null) {
								t.query = r.query;
							} else {
								t.query = base.query;
							}
						} else {
							if(r.path.substr(0,1) === '/') {
								t.path = removeDotSegments(r.path);
							} else {
								if(base.authority !== null && base.path === '') {
									t.path = '/'+r.path;
								} else {
									t.path = base.path.replace(/[^\/]+$/,'')+r.path;
								}
								t.path = removeDotSegments(t.path);
							}
							t.query = r.query;
						}
						t.authority = base.authority;
					}
					t.scheme = base.scheme;
				}
				t.fragment = r.fragment;

				return t;
			};

			function removeDotSegments(path) {
				var out = '';
				while(path) {
					if(path.substr(0,3)==='../' || path.substr(0,2)==='./') {
						path = path.replace(/^\.+/,'').substr(1);
					} else if(path.substr(0,3)==='/./' || path==='/.') {
						path = '/'+path.substr(3);
					} else if(path.substr(0,4)==='/../' || path==='/..') {
						path = '/'+path.substr(4);
						out = out.replace(/\/?[^\/]*$/, '');
					} else if(path==='.' || path==='..') {
						path = '';
					} else {
						var rm = path.match(/^\/?[^\/]*/)[0];
						path = path.substr(rm.length);
						out = out + rm;
					}
				}
				return out;
			}

			if(uri) {
				this.parse(uri);
			}

		},


		//
		// Usage example:
		// var myColor = new jscolor.color(myInputElement)
		//

		color : function(target, prop) {


			this.required = true; // refuse empty values?
			this.adjust = true; // adjust value to uniform notation?
			this.hash = true; // prefix color with # symbol?
			this.caps = true; // uppercase?
			this.slider = true; // show the value/saturation slider?
			this.valueElement = target; // value holder
			this.styleElement = target; // where to reflect current color
			this.onImmediateChange = null; // onchange callback (can be either string or function)
			this.hsv = [0, 0, 1]; // read-only  0-6, 0-1, 0-1
			this.rgb = [1, 1, 1]; // read-only  0-1, 0-1, 0-1
			this.minH = 0; // read-only  0-6
			this.maxH = 6; // read-only  0-6
			this.minS = 0; // read-only  0-1
			this.maxS = 1; // read-only  0-1
			this.minV = 0; // read-only  0-1
			this.maxV = 1; // read-only  0-1

			this.pickerOnfocus = true; // display picker on focus?
			this.pickerMode = 'HSV'; // HSV | HVS
			this.pickerPosition = 'bottom'; // left | right | top | bottom
			this.pickerSmartPosition = true; // automatically adjust picker position when necessary
			this.pickerButtonHeight = 20; // px
			this.pickerClosable = false;
			this.pickerCloseText = 'Close';
			this.pickerButtonColor = 'ButtonText'; // px
			this.pickerFace = 10; // px
			this.pickerFaceColor = 'ThreeDFace'; // CSS color
			this.pickerBorder = 1; // px
			this.pickerBorderColor = 'ThreeDHighlight ThreeDShadow ThreeDShadow ThreeDHighlight'; // CSS color
			this.pickerInset = 1; // px
			this.pickerInsetColor = 'ThreeDShadow ThreeDHighlight ThreeDHighlight ThreeDShadow'; // CSS color
			this.pickerZIndex = 10000;


			for(var p in prop) {
				if(prop.hasOwnProperty(p)) {
					this[p] = prop[p];
				}
			}


			this.hidePicker = function() {
				if(isPickerOwner()) {
					removePicker();
				}
			};


			this.showPicker = function() {
				if(!isPickerOwner()) {
					var tp = jscolor.getElementPos(target); // target pos
					var ts = jscolor.getElementSize(target); // target size
					var vp = jscolor.getViewPos(); // view pos
					var vs = jscolor.getViewSize(); // view size
					var ps = getPickerDims(this); // picker size
					var a, b, c;
					switch(this.pickerPosition.toLowerCase()) {
						case 'left': a=1; b=0; c=-1; break;
						case 'right':a=1; b=0; c=1; break;
						case 'top':  a=0; b=1; c=-1; break;
						default:     a=0; b=1; c=1; break;
					}
					var l = (ts[b]+ps[b])/2;

					// picker pos
					if (!this.pickerSmartPosition) {
						var pp = [
							tp[a],
							tp[b]+ts[b]-l+l*c
						];
					} else {
						var pp = [
							-vp[a]+tp[a]+ps[a] > vs[a] ?
								(-vp[a]+tp[a]+ts[a]/2 > vs[a]/2 && tp[a]+ts[a]-ps[a] >= 0 ? tp[a]+ts[a]-ps[a] : tp[a]) :
								tp[a],
							-vp[b]+tp[b]+ts[b]+ps[b]-l+l*c > vs[b] ?
								(-vp[b]+tp[b]+ts[b]/2 > vs[b]/2 && tp[b]+ts[b]-l-l*c >= 0 ? tp[b]+ts[b]-l-l*c : tp[b]+ts[b]-l+l*c) :
								(tp[b]+ts[b]-l+l*c >= 0 ? tp[b]+ts[b]-l+l*c : tp[b]+ts[b]-l-l*c)
						];
					}
					drawPicker(pp[a], pp[b]);
				}
			};


			this.importColor = function() {
				if(!valueElement) {
					this.exportColor();
				} else {
					if(!this.adjust) {
						if(!this.fromString(valueElement.value, leaveValue)) {
							styleElement.style.backgroundImage = styleElement.jscStyle.backgroundImage;
							styleElement.style.backgroundColor = styleElement.jscStyle.backgroundColor;
							styleElement.style.color = styleElement.jscStyle.color;
							this.exportColor(leaveValue | leaveStyle);
						}
					} else if(!this.required && /^\s*$/.test(valueElement.value)) {
						valueElement.value = '';
						styleElement.style.backgroundImage = styleElement.jscStyle.backgroundImage;
						styleElement.style.backgroundColor = styleElement.jscStyle.backgroundColor;
						styleElement.style.color = styleElement.jscStyle.color;
						this.exportColor(leaveValue | leaveStyle);

					} else if(this.fromString(valueElement.value)) {
						// OK
					} else {
						this.exportColor();
					}
				}
			};


			this.exportColor = function(flags) {
				if(!(flags & leaveValue) && valueElement) {
					var value = this.toString();
					if(this.caps) { value = value.toUpperCase(); }
					if(this.hash) { value = '#'+value; }
					valueElement.value = value;
				}
				if(!(flags & leaveStyle) && styleElement) {
					styleElement.style.backgroundImage = "none";
					styleElement.style.backgroundColor =
						'#'+this.toString();
					styleElement.style.color =
						0.213 * this.rgb[0] +
						0.715 * this.rgb[1] +
						0.072 * this.rgb[2]
						< 0.5 ? '#FFF' : '#000';
				}
				if(!(flags & leavePad) && isPickerOwner()) {
					redrawPad();
				}
				if(!(flags & leaveSld) && isPickerOwner()) {
					redrawSld();
				}
			};


			this.fromHSV = function(h, s, v, flags) { // null = don't change
				if(h !== null) { h = Math.max(0.0, this.minH, Math.min(6.0, this.maxH, h)); }
				if(s !== null) { s = Math.max(0.0, this.minS, Math.min(1.0, this.maxS, s)); }
				if(v !== null) { v = Math.max(0.0, this.minV, Math.min(1.0, this.maxV, v)); }

				this.rgb = HSV_RGB(
					h===null ? this.hsv[0] : (this.hsv[0]=h),
					s===null ? this.hsv[1] : (this.hsv[1]=s),
					v===null ? this.hsv[2] : (this.hsv[2]=v)
				);

				this.exportColor(flags);
			};


			this.fromRGB = function(r, g, b, flags) { // null = don't change
				if(r !== null) { r = Math.max(0.0, Math.min(1.0, r)); }
				if(g !== null) { g = Math.max(0.0, Math.min(1.0, g)); }
				if(b !== null) { b = Math.max(0.0, Math.min(1.0, b)); }

				var hsv = RGB_HSV(
					r===null ? this.rgb[0] : r,
					g===null ? this.rgb[1] : g,
					b===null ? this.rgb[2] : b
				);
				if(hsv[0] !== null) {
					this.hsv[0] = Math.max(0.0, this.minH, Math.min(6.0, this.maxH, hsv[0]));
				}
				if(hsv[2] !== 0) {
					this.hsv[1] = hsv[1]===null ? null : Math.max(0.0, this.minS, Math.min(1.0, this.maxS, hsv[1]));
				}
				this.hsv[2] = hsv[2]===null ? null : Math.max(0.0, this.minV, Math.min(1.0, this.maxV, hsv[2]));

				// update RGB according to final HSV, as some values might be trimmed
				var rgb = HSV_RGB(this.hsv[0], this.hsv[1], this.hsv[2]);
				this.rgb[0] = rgb[0];
				this.rgb[1] = rgb[1];
				this.rgb[2] = rgb[2];

				this.exportColor(flags);
			};


			this.fromString = function(hex, flags) {
				var m = hex.match(/^\W*([0-9A-F]{3}([0-9A-F]{3})?)\W*$/i);
				if(!m) {
					return false;
				} else {
					if(m[1].length === 6) { // 6-char notation
						this.fromRGB(
							parseInt(m[1].substr(0,2),16) / 255,
							parseInt(m[1].substr(2,2),16) / 255,
							parseInt(m[1].substr(4,2),16) / 255,
							flags
						);
					} else { // 3-char notation
						this.fromRGB(
							parseInt(m[1].charAt(0)+m[1].charAt(0),16) / 255,
							parseInt(m[1].charAt(1)+m[1].charAt(1),16) / 255,
							parseInt(m[1].charAt(2)+m[1].charAt(2),16) / 255,
							flags
						);
					}
					return true;
				}
			};


			this.toString = function() {
				return (
					(0x100 | Math.round(255*this.rgb[0])).toString(16).substr(1) +
					(0x100 | Math.round(255*this.rgb[1])).toString(16).substr(1) +
					(0x100 | Math.round(255*this.rgb[2])).toString(16).substr(1)
				);
			};


			function RGB_HSV(r, g, b) {
				var n = Math.min(Math.min(r,g),b);
				var v = Math.max(Math.max(r,g),b);
				var m = v - n;
				if(m === 0) { return [ null, 0, v ]; }
				var h = r===n ? 3+(b-g)/m : (g===n ? 5+(r-b)/m : 1+(g-r)/m);
				return [ h===6?0:h, m/v, v ];
			}


			function HSV_RGB(h, s, v) {
				if(h === null) { return [ v, v, v ]; }
				var i = Math.floor(h);
				var f = i%2 ? h-i : 1-(h-i);
				var m = v * (1 - s);
				var n = v * (1 - s*f);
				switch(i) {
					case 6:
					case 0: return [v,n,m];
					case 1: return [n,v,m];
					case 2: return [m,v,n];
					case 3: return [m,n,v];
					case 4: return [n,m,v];
					case 5: return [v,m,n];
				}
			}


			function removePicker() {
				delete jscolor.picker.owner;
				document.getElementsByTagName('body')[0].removeChild(jscolor.picker.boxB);
			}


			function drawPicker(x, y) {
				if(!jscolor.picker) {
					jscolor.picker = {
						box : document.createElement('div'),
						boxB : document.createElement('div'),
						pad : document.createElement('div'),
						padB : document.createElement('div'),
						padM : document.createElement('div'),
						sld : document.createElement('div'),
						sldB : document.createElement('div'),
						sldM : document.createElement('div'),
						btn : document.createElement('div'),
						btnS : document.createElement('span'),
						btnT : document.createTextNode(THIS.pickerCloseText)
					};
					for(var i=0,segSize=4; i<jscolor.images.sld[1]; i+=segSize) {
						var seg = document.createElement('div');
						seg.style.height = segSize+'px';
						seg.style.fontSize = '1px';
						seg.style.lineHeight = '0';
						jscolor.picker.sld.appendChild(seg);
					}
					jscolor.picker.sldB.appendChild(jscolor.picker.sld);
					jscolor.picker.box.appendChild(jscolor.picker.sldB);
					jscolor.picker.box.appendChild(jscolor.picker.sldM);
					jscolor.picker.padB.appendChild(jscolor.picker.pad);
					jscolor.picker.box.appendChild(jscolor.picker.padB);
					jscolor.picker.box.appendChild(jscolor.picker.padM);
					jscolor.picker.btnS.appendChild(jscolor.picker.btnT);
					jscolor.picker.btn.appendChild(jscolor.picker.btnS);
					jscolor.picker.box.appendChild(jscolor.picker.btn);
					jscolor.picker.boxB.appendChild(jscolor.picker.box);
				}

				var p = jscolor.picker;

				// controls interaction
				p.box.onmouseup =
				p.box.onmouseout = function() { target.focus(); };
				p.box.onmousedown = function() { abortBlur=true; };
				p.box.onmousemove = function(e) {
					if (holdPad || holdSld) {
						holdPad && setPad(e);
						holdSld && setSld(e);
						if (document.selection) {
							document.selection.empty();
						} else if (window.getSelection) {
							window.getSelection().removeAllRanges();
						}
						dispatchImmediateChange();
					}
				};
				if('ontouchstart' in window) { // if touch device
					p.box.addEventListener('touchmove', function(e) {
						var event={
							'offsetX': e.touches[0].pageX-touchOffset.X,
							'offsetY': e.touches[0].pageY-touchOffset.Y
						};
						if (holdPad || holdSld) {
							holdPad && setPad(event);
							holdSld && setSld(event);
							dispatchImmediateChange();
						}
						e.stopPropagation(); // prevent move "view" on broswer
						e.preventDefault(); // prevent Default - Android Fix (else android generated only 1-2 touchmove events)
					}, false);
				}
				p.padM.onmouseup =
				p.padM.onmouseout = function() { if(holdPad) { holdPad=false; jscolor.fireEvent(valueElement,'change'); } };
				p.padM.onmousedown = function(e) {
					// if the slider is at the bottom, move it up
					switch(modeID) {
						case 0: if (THIS.hsv[2] === 0) { THIS.fromHSV(null, null, 1.0); }; break;
						case 1: if (THIS.hsv[1] === 0) { THIS.fromHSV(null, 1.0, null); }; break;
					}
					holdSld=false;
					holdPad=true;
					setPad(e);
					dispatchImmediateChange();
				};
				if('ontouchstart' in window) {
					p.padM.addEventListener('touchstart', function(e) {
						touchOffset={
							'X': e.target.offsetParent.offsetLeft,
							'Y': e.target.offsetParent.offsetTop
						};
						this.onmousedown({
							'offsetX':e.touches[0].pageX-touchOffset.X,
							'offsetY':e.touches[0].pageY-touchOffset.Y
						});
					});
				}
				p.sldM.onmouseup =
				p.sldM.onmouseout = function() { if(holdSld) { holdSld=false; jscolor.fireEvent(valueElement,'change'); } };
				p.sldM.onmousedown = function(e) {
					holdPad=false;
					holdSld=true;
					setSld(e);
					dispatchImmediateChange();
				};
				if('ontouchstart' in window) {
					p.sldM.addEventListener('touchstart', function(e) {
						touchOffset={
							'X': e.target.offsetParent.offsetLeft,
							'Y': e.target.offsetParent.offsetTop
						};
						this.onmousedown({
							'offsetX':e.touches[0].pageX-touchOffset.X,
							'offsetY':e.touches[0].pageY-touchOffset.Y
						});
					});
				}

				// picker
				var dims = getPickerDims(THIS);
				p.box.style.width = dims[0] + 'px';
				p.box.style.height = dims[1] + 'px';

				// picker border
				p.boxB.style.position = 'absolute';
				p.boxB.style.clear = 'both';
				p.boxB.style.left = x+'px';
				p.boxB.style.top = y+'px';
				p.boxB.style.zIndex = THIS.pickerZIndex;
				p.boxB.style.border = THIS.pickerBorder+'px solid';
				p.boxB.style.borderColor = THIS.pickerBorderColor;
				p.boxB.style.background = THIS.pickerFaceColor;

				// pad image
				p.pad.style.width = jscolor.images.pad[0]+'px';
				p.pad.style.height = jscolor.images.pad[1]+'px';

				// pad border
				p.padB.style.position = 'absolute';
				p.padB.style.left = THIS.pickerFace+'px';
				p.padB.style.top = THIS.pickerFace+'px';
				p.padB.style.border = THIS.pickerInset+'px solid';
				p.padB.style.borderColor = THIS.pickerInsetColor;

				// pad mouse area
				p.padM.style.position = 'absolute';
				p.padM.style.left = '0';
				p.padM.style.top = '0';
				p.padM.style.width = THIS.pickerFace + 2*THIS.pickerInset + jscolor.images.pad[0] + jscolor.images.arrow[0] + 'px';
				p.padM.style.height = p.box.style.height;
				p.padM.style.cursor = 'crosshair';

				// slider image
				p.sld.style.overflow = 'hidden';
				p.sld.style.width = jscolor.images.sld[0]+'px';
				p.sld.style.height = jscolor.images.sld[1]+'px';

				// slider border
				p.sldB.style.display = THIS.slider ? 'block' : 'none';
				p.sldB.style.position = 'absolute';
				p.sldB.style.right = THIS.pickerFace+'px';
				p.sldB.style.top = THIS.pickerFace+'px';
				p.sldB.style.border = THIS.pickerInset+'px solid';
				p.sldB.style.borderColor = THIS.pickerInsetColor;

				// slider mouse area
				p.sldM.style.display = THIS.slider ? 'block' : 'none';
				p.sldM.style.position = 'absolute';
				p.sldM.style.right = '0';
				p.sldM.style.top = '0';
				p.sldM.style.width = jscolor.images.sld[0] + jscolor.images.arrow[0] + THIS.pickerFace + 2*THIS.pickerInset + 'px';
				p.sldM.style.height = p.box.style.height;
				try {
					p.sldM.style.cursor = 'pointer';
				} catch(eOldIE) {
					p.sldM.style.cursor = 'hand';
				}

				// "close" button
				function setBtnBorder() {
					var insetColors = THIS.pickerInsetColor.split(/\s+/);
					var pickerOutsetColor = insetColors.length < 2 ? insetColors[0] : insetColors[1] + ' ' + insetColors[0] + ' ' + insetColors[0] + ' ' + insetColors[1];
					p.btn.style.borderColor = pickerOutsetColor;
				}
				p.btn.style.display = THIS.pickerClosable ? 'block' : 'none';
				p.btn.style.position = 'absolute';
				p.btn.style.left = THIS.pickerFace + 'px';
				p.btn.style.bottom = THIS.pickerFace + 'px';
				p.btn.style.padding = '0 15px';
				p.btn.style.height = '18px';
				p.btn.style.border = THIS.pickerInset + 'px solid';
				setBtnBorder();
				p.btn.style.color = THIS.pickerButtonColor;
				p.btn.style.font = '12px sans-serif';
				p.btn.style.textAlign = 'center';
				try {
					p.btn.style.cursor = 'pointer';
				} catch(eOldIE) {
					p.btn.style.cursor = 'hand';
				}
				p.btn.onmousedown = function () {
					THIS.hidePicker();
				};
				p.btnS.style.lineHeight = p.btn.style.height;

				// load images in optimal order
				switch(modeID) {
					case 0: var padImg = 'hs.png'; break;
					case 1: var padImg = 'hv.png'; break;
				}
				p.padM.style.backgroundImage = "url('"+jscolor.getDir()+"cross.gif')";
				p.padM.style.backgroundRepeat = "no-repeat";
				p.sldM.style.backgroundImage = "url('"+jscolor.getDir()+"arrow.gif')";
				p.sldM.style.backgroundRepeat = "no-repeat";
				p.pad.style.backgroundImage = "url('"+jscolor.getDir()+padImg+"')";
				p.pad.style.backgroundRepeat = "no-repeat";
				p.pad.style.backgroundPosition = "0 0";

				// place pointers
				redrawPad();
				redrawSld();

				jscolor.picker.owner = THIS;
				document.getElementsByTagName('body')[0].appendChild(p.boxB);
			}


			function getPickerDims(o) {
				var dims = [
					2*o.pickerInset + 2*o.pickerFace + jscolor.images.pad[0] +
						(o.slider ? 2*o.pickerInset + 2*jscolor.images.arrow[0] + jscolor.images.sld[0] : 0),
					o.pickerClosable ?
						4*o.pickerInset + 3*o.pickerFace + jscolor.images.pad[1] + o.pickerButtonHeight :
						2*o.pickerInset + 2*o.pickerFace + jscolor.images.pad[1]
				];
				return dims;
			}


			function redrawPad() {
				// redraw the pad pointer
				switch(modeID) {
					case 0: var yComponent = 1; break;
					case 1: var yComponent = 2; break;
				}
				var x = Math.round((THIS.hsv[0]/6) * (jscolor.images.pad[0]-1));
				var y = Math.round((1-THIS.hsv[yComponent]) * (jscolor.images.pad[1]-1));
				jscolor.picker.padM.style.backgroundPosition =
					(THIS.pickerFace+THIS.pickerInset+x - Math.floor(jscolor.images.cross[0]/2)) + 'px ' +
					(THIS.pickerFace+THIS.pickerInset+y - Math.floor(jscolor.images.cross[1]/2)) + 'px';

				// redraw the slider image
				var seg = jscolor.picker.sld.childNodes;

				switch(modeID) {
					case 0:
						var rgb = HSV_RGB(THIS.hsv[0], THIS.hsv[1], 1);
						for(var i=0; i<seg.length; i+=1) {
							seg[i].style.backgroundColor = 'rgb('+
								(rgb[0]*(1-i/seg.length)*100)+'%,'+
								(rgb[1]*(1-i/seg.length)*100)+'%,'+
								(rgb[2]*(1-i/seg.length)*100)+'%)';
						}
						break;
					case 1:
						var rgb, s, c = [ THIS.hsv[2], 0, 0 ];
						var i = Math.floor(THIS.hsv[0]);
						var f = i%2 ? THIS.hsv[0]-i : 1-(THIS.hsv[0]-i);
						switch(i) {
							case 6:
							case 0: rgb=[0,1,2]; break;
							case 1: rgb=[1,0,2]; break;
							case 2: rgb=[2,0,1]; break;
							case 3: rgb=[2,1,0]; break;
							case 4: rgb=[1,2,0]; break;
							case 5: rgb=[0,2,1]; break;
						}
						for(var i=0; i<seg.length; i+=1) {
							s = 1 - 1/(seg.length-1)*i;
							c[1] = c[0] * (1 - s*f);
							c[2] = c[0] * (1 - s);
							seg[i].style.backgroundColor = 'rgb('+
								(c[rgb[0]]*100)+'%,'+
								(c[rgb[1]]*100)+'%,'+
								(c[rgb[2]]*100)+'%)';
						}
						break;
				}
			}


			function redrawSld() {
				// redraw the slider pointer
				switch(modeID) {
					case 0: var yComponent = 2; break;
					case 1: var yComponent = 1; break;
				}
				var y = Math.round((1-THIS.hsv[yComponent]) * (jscolor.images.sld[1]-1));
				jscolor.picker.sldM.style.backgroundPosition =
					'0 ' + (THIS.pickerFace+THIS.pickerInset+y - Math.floor(jscolor.images.arrow[1]/2)) + 'px';
			}


			function isPickerOwner() {
				return jscolor.picker && jscolor.picker.owner === THIS;
			}


			function blurTarget() {
				if(valueElement === target) {
					THIS.importColor();
				}
				if(THIS.pickerOnfocus) {
					THIS.hidePicker();
				}
			}


			function blurValue() {
				if(valueElement !== target) {
					THIS.importColor();
				}
			}


			function setPad(e) {
				var mpos = jscolor.getRelMousePos(e);
				var x = mpos.x - THIS.pickerFace - THIS.pickerInset;
				var y = mpos.y - THIS.pickerFace - THIS.pickerInset;
				switch(modeID) {
					case 0: THIS.fromHSV(x*(6/(jscolor.images.pad[0]-1)), 1 - y/(jscolor.images.pad[1]-1), null, leaveSld); break;
					case 1: THIS.fromHSV(x*(6/(jscolor.images.pad[0]-1)), null, 1 - y/(jscolor.images.pad[1]-1), leaveSld); break;
				}
			}


			function setSld(e) {
				var mpos = jscolor.getRelMousePos(e);
				var y = mpos.y - THIS.pickerFace - THIS.pickerInset;
				switch(modeID) {
					case 0: THIS.fromHSV(null, null, 1 - y/(jscolor.images.sld[1]-1), leavePad); break;
					case 1: THIS.fromHSV(null, 1 - y/(jscolor.images.sld[1]-1), null, leavePad); break;
				}
			}


			function dispatchImmediateChange() {
				if (THIS.onImmediateChange) {
					var callback;
					if (typeof THIS.onImmediateChange === 'string') {
						callback = new Function (THIS.onImmediateChange);
					} else {
						callback = THIS.onImmediateChange;
					}
					callback.call(THIS);
				}
			}


			var THIS = this;
			var modeID = this.pickerMode.toLowerCase()==='hvs' ? 1 : 0;
			var abortBlur = false;
			var
				valueElement = jscolor.fetchElement(this.valueElement),
				styleElement = jscolor.fetchElement(this.styleElement);
			var
				holdPad = false,
				holdSld = false,
				touchOffset = {};
			var
				leaveValue = 1<<0,
				leaveStyle = 1<<1,
				leavePad = 1<<2,
				leaveSld = 1<<3;

			// target
			jscolor.addEvent(target, 'focus', function() {
				if(THIS.pickerOnfocus) { THIS.showPicker(); }
			});
			jscolor.addEvent(target, 'blur', function() {
				if(!abortBlur) {
					window.setTimeout(function(){ abortBlur || blurTarget(); abortBlur=false; }, 0);
				} else {
					abortBlur = false;
				}
			});

			// valueElement
			if(valueElement) {
				var updateField = function() {
					THIS.fromString(valueElement.value, leaveValue);
					dispatchImmediateChange();
				};
				jscolor.addEvent(valueElement, 'keyup', updateField);
				jscolor.addEvent(valueElement, 'input', updateField);
				jscolor.addEvent(valueElement, 'blur', blurValue);
				valueElement.setAttribute('autocomplete', 'off');
			}

			// styleElement
			if(styleElement) {
				styleElement.jscStyle = {
					backgroundImage : styleElement.style.backgroundImage,
					backgroundColor : styleElement.style.backgroundColor,
					color : styleElement.style.color
				};
			}

			// require images
			switch(modeID) {
				case 0: jscolor.requireImage('hs.png'); break;
				case 1: jscolor.requireImage('hv.png'); break;
			}
			jscolor.requireImage('cross.gif');
			jscolor.requireImage('arrow.gif');

			this.importColor();
		}

	};
	return jscolor;
});
